health

Documentation

Index

• Variables
• func CheckAPIServerAvailability(ctx context.Context, condition gardencorev1beta1.Condition, ...) gardencorev1beta1.Condition
• func CheckAPIService(apiService *apiregistrationv1.APIService) error
• func CheckBackupBucket(bb client.Object) error
• func CheckDaemonSet(daemonSet *appsv1.DaemonSet) error
• func CheckDeployment(deployment *appsv1.Deployment) error
• func CheckEtcd(etcd *druidv1alpha1.Etcd) error
• func CheckExtensionObject(o client.Object) error
• func CheckManagedResource(managedResource *resourcesv1alpha1.ManagedResource) error
• func CheckManagedSeed(managedSeed *seedmanagementv1alpha1.ManagedSeed) error
• func CheckNode(node *corev1.Node) error
• func CheckSeed(seed *gardencorev1beta1.Seed, identity *gardencorev1beta1.Gardener) error
• func CheckSeedForMigration(seed *gardencorev1beta1.Seed, identity *gardencorev1beta1.Gardener) error
• func CheckStatefulSet(statefulSet *appsv1.StatefulSet) error
• func CheckTunnelConnection(ctx context.Context, shootClient kubernetes.Interface, ...) (bool, error)
• func GetPodCondition(status *corev1.PodStatus, conditionType corev1.PodConditionType) (int, *corev1.PodCondition)
• func GetPodReadyCondition(status corev1.PodStatus) *corev1.PodCondition
• func IsPodReady(pod *corev1.Pod) bool
• func IsPodReadyConditionTrue(status corev1.PodStatus) bool
• type Func
  • func And(fns ...Func) Func
  • func ExtensionOperationHasBeenUpdatedSince(lastUpdateTime metav1.Time) Func

Variables

var Now = time.Now

Now determines the current time.

Functions

func CheckAPIServerAvailability

func CheckAPIServerAvailability(ctx context.Context, condition gardencorev1beta1.Condition, restClient rest.Interface, conditioner conditionerFunc, log logrus.FieldLogger) gardencorev1beta1.Condition

CheckAPIServerAvailability checks if the API server of a cluster is reachable and measure the response time.

func CheckAPIService

func CheckAPIService(apiService *apiregistrationv1.APIService) error

CheckAPIService checks whether the given APIService is healthy. An APIService is considered healthy if it has the `Available` condition and its status is `True`.

func CheckBackupBucket

func CheckBackupBucket(bb client.Object) error

CheckBackupBucket checks if an backup bucket Object is healthy or not.

func CheckDaemonSet

func CheckDaemonSet(daemonSet *appsv1.DaemonSet) error

CheckDaemonSet checks whether the given DaemonSet is healthy. A DaemonSet is considered healthy if its controller observed its current revision and if its desired number of scheduled pods is equal to its updated number of scheduled pods.

func CheckDeployment

func CheckDeployment(deployment *appsv1.Deployment) error

CheckDeployment checks whether the given Deployment is healthy. A deployment is considered healthy if the controller observed its current revision and if the number of updated replicas is equal to the number of replicas.

func CheckEtcd

func CheckEtcd(etcd *druidv1alpha1.Etcd) error

CheckEtcd checks whether the given Etcd is healthy. A Etcd is considered healthy if its ready field in status is true.

func CheckExtensionObject

func CheckExtensionObject(o client.Object) error

CheckExtensionObject checks if an extension Object is healthy or not. An extension object is healthy if * Its observed generation is up-to-date * No gardener.cloud/operation is set * No lastError is in the status * A last operation is state succeeded is present

func CheckManagedResource

func CheckManagedResource(managedResource *resourcesv1alpha1.ManagedResource) error

CheckManagedResource checks whether the given ManagedResource is healthy. A ManagedResource is considered healthy if its controller observed its current revision, and if the required conditions are healthy.

func CheckManagedSeed

func CheckManagedSeed(managedSeed *seedmanagementv1alpha1.ManagedSeed) error

CheckManagedSeed checks if the given ManagedSeed is up-to-date and if its Seed has been registered.

func CheckNode

func CheckNode(node *corev1.Node) error

CheckNode checks whether the given Node is healthy. A node is considered healthy if it has a `corev1.NodeReady` condition and this condition reports `corev1.ConditionTrue`.

func CheckSeed

func CheckSeed(seed *gardencorev1beta1.Seed, identity *gardencorev1beta1.Gardener) error

CheckSeed checks if the Seed is up-to-date and if its extensions have been successfully bootstrapped.

func CheckSeedForMigration

func CheckSeedForMigration(seed *gardencorev1beta1.Seed, identity *gardencorev1beta1.Gardener) error

CheckSeedForMigration checks if the Seed is up-to-date (comparing only the versions) and if its extensions have been successfully bootstrapped.

func CheckStatefulSet

func CheckStatefulSet(statefulSet *appsv1.StatefulSet) error

CheckStatefulSet checks whether the given StatefulSet is healthy. A StatefulSet is considered healthy if its controller observed its current revision, it is not in an update (i.e. UpdateRevision is empty) and if its current replicas are equal to its desired replicas.

func CheckTunnelConnection

func CheckTunnelConnection(ctx context.Context, shootClient kubernetes.Interface, logger logrus.FieldLogger, tunnelName string) (bool, error)

CheckTunnelConnection checks if the tunnel connection between the control plane and the shoot networks is established.

func GetPodCondition

func GetPodCondition(status *corev1.PodStatus, conditionType corev1.PodConditionType) (int, *corev1.PodCondition)

GetPodCondition extracts the provided condition from the given status and returns that. Returns nil and -1 if the condition is not present, and the index of the located condition.

func GetPodReadyCondition

func GetPodReadyCondition(status corev1.PodStatus) *corev1.PodCondition

GetPodReadyCondition extracts the pod ready condition from the given status and returns that. Returns nil if the condition is not present.

func IsPodReady

func IsPodReady(pod *corev1.Pod) bool

IsPodReady returns true if a pod is ready; false otherwise.

func IsPodReadyConditionTrue

func IsPodReadyConditionTrue(status corev1.PodStatus) bool

IsPodReadyConditionTrue returns true if a pod is ready; false otherwise.

Types

type Func

type Func func(client.Object) error

Func is a type for a function that checks the health of a runtime.Object.

func And

func And(fns ...Func) Func

And combines multiple health check funcs to a single func, checking all funcs sequentially and return the first error that occurs or nil if no error occurs.¬

func ExtensionOperationHasBeenUpdatedSince

func ExtensionOperationHasBeenUpdatedSince(lastUpdateTime metav1.Time) Func

ExtensionOperationHasBeenUpdatedSince returns a health check function that checks if an extension Object's last operation has been updated since `lastUpdateTime`.